.footer {
  height: 15vh;
  box-shadow: 0px 0px 30px -8px gray;
  display: flex;
  justify-content: space-between;
  border-top: 1px solid lightgray;
  box-sizing: border-box;
  align-items: center;
  padding: 0px 40px;
}

.play-pause {
  background-color: #16a8f0;
  height: 75px;
  width: 75px;
  border: 0px;
  border-radius: 50%;
  display: flex;
  justify-content: baseline;
  align-items: center;
  cursor: pointer;
}
.play-pause:hover {
  background-color: #5bc2f4;
}

.play {
    width: 0;
    height: 0;
    border-top: 20px solid transparent;
    border-left: 30px solid white;
    border-bottom: 20px solid transparent;
    margin-left: 30%;
}

.stop {
  height: 30px;
  width: 30px;
  border: 0px;
  margin: auto;
  background-color: white;
}

.tempo-slider{
  display: flex;
  justify-content: space-around;
  align-items: center;
}

#tempo-number {
  color: #16a8f0;
  width: 25px;
}

#clear-btn {
  color: white;
  background-color: #16a8f0;
  font-size: 16px;
  padding: 15px 20px;
  border: 0px;
  border-radius: 5px;
  cursor: pointer;
}
#clear-btn:hover {
  background-color: #5bc2f4;
}
